Late Monday, the 15 states filed what's known as a motion to intervene — meaning they want to become part of the legal proceedings surrounding the public health rule referred to as Title 42.
The rule, first invoked by Trump in 2020, uses emergency public health authority to allow the United States to keep migrants from seeking asylum at the border, based on the need to help prevent the spread of COVID-19.
It's set to end Dec. 21st, potentially upending border enforcement as Republicans are about to take control of the House from the Democrats following midterm elections and are planning to make security of the border a central part of their agenda.
The states argued that they will suffer “irreparable harm from the impending Termination of Title 42” and that they should be allowed to argue their position well before the Dec. 21 termination date.
U.S. District Judge Emmet Sullivan ruled in Washington that enforcement must end immediately for families and single adults. The administration has not used Title 42 with regard to children traveling alone. The judge later granted a request by President Joe Biden's administration to set a Dec. 21 deadline for his order to go into effect, giving the administration five weeks to prepare for the change.
The 15 states argued that states such as Arizona and Texas that border Mexico as well as other states away from the border will face an even greater crisis than they are already experiencing with massive illegal immigration if use of Title 42 ends. The legal filings lay out a timeline to argue the matter further.